Garlean Playable Race (?)

[Jandor]

They've got you with Lucia, definitely counts as a Garlean doing magic. Although to be fair, I wouldn't say that being able to cast cure I, the most basic healing spell there is, is incompatible with the passage 'little inborn ability to manipulate aether.'

If that's all she can cast, and I don't think we ever see her cast anything else, then that would indeed be very minor ability. I suspect it started as oversight and she just got given the standard temple knight move set, but it does make sense for her since she used to be a spy, seems like a good reason to put in what might otherwise be an unjustifiable amount of effort to learn a basic spell.